• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2017년도 추계학술논문요약집
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• pp.183-184
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• 2017

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.141-148
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• 2003

한국원자력연구소에서 발생하는 액체폐기물은 환경으로의 무방출 원칙에 따라 탱크에 임시저장하면서 증발농축의 감용처리를 거쳐 고체화하거나 자연증발시설을 통해 최종 증발 처리를 한다. 폐기물의 효율적 관리를 위한 체계적인 이력관리와 문서관리 및 각종 통계자료를 도출할 수 있는 데이터베이스 시스템의 구축의 일환으로 현재 연구소에서 실시하는 액체와 고체 방사성폐기물의 처리공정상에서의 데이터 확보가 필요하다. 이를 위해 폐기물 발생현황과 처리공정별 데이터를 분석하고 공정의 흐름과정에서 확보하는 데이터를 데이터베이스에 입출력하는 응용프로그램 설계를 완료하였다. 본 연구는 연구소에서 발생하는 방사성폐기물의 발생현황과 이를 수집하여 부피축소와 감용 처리 공정을 거치는 일련의 공정과정을 분석하여 도식화한 결과와 이를 토대로 폐기물처리 업무에 맞는 데이터 입출력 프로그램을 설계 내용을 소개한다. 제한된 환경에서의 실험이 아닌 실제 처리공정상의 데이터는 서류와 인적, 물적 자원의 절약을 도모하고 방사성폐기물에 대한 추적관리 및 처리의 효율성을 향상시키며 정확하고 신속한 정보를 제공하여 방사성폐기물의 물질수지연구에 이바지 할 수 있다.

• 대한지역사회영양학회지
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• 제24권5호
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• pp.422-432
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• 2019

Objectives: The purposes of the study were to assess wastes generated in school foodservice and to identify factors influencing the generation of plate waste. Methods: A survey was administered from November 18-30 in 2015 to dietitians and nutrition teachers that were employed in schools located in Gyeonggi province. A questionnaire file and on-line survey site link were sent to the dietitians and nutrition teachers by e-mail. A total of 622 dietitians and nutrition teachers responded and 594 responses were used for data analysis after excluding 28 responses with significant missing data. Results: Plate waste was the major part of food waste generated in school foodservice. Vegetable menus and soup/stews were discarded the most as plate waste. The dietitians and nutrition teachers perceived students' unbalanced diet and lack of appreciation of food as causes of the plate waste. Regarding waste management, they were concerned about environmental contamination by food waste and felt uncomfortable about discarding food. No plate waste day was the most frequently used plate waste reduction activity, followed by newsletters on plate waste reduction. Difficulty in getting teachers' support for dietary education during meal time was rated the greatest barrier to implementing the activities. To reduce plate waste, they perceived that students should understand the importance of environment conservation, teachers should supervise students' eating during meal time, students should be educated about proper portion, and foodservice staff should improve food quality. Conclusions: To improve students' intake and reduce plate waste in school foodservice, foodservice staff need to involve students in school foodservice and improve the palatability of meals, especially vegetable dishes. School nutrition teachers and dietitians should educate students about healthy eating and environment conservation and the school community needs to understand and support plate waste reduction and healthy eating in schools.

• 지역사회간호학회지
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• 제30권2호
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• pp.174-182
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• 2019

Purpose: The purpose of this study is to find out how much influence nursing students' environmental consciousness and knowledge of medical waste have on their attitudes toward medical waste. Methods: The subjects were 211 nursing students recruited from 2 universities. Data were collected with a structured self-report questionnaire comprising measures of environmental consciousness, and knowledge of and attitude toward medical waste. Data analysis was conducted with the SPSS/WIN 25.0 program. Results: A total of 211 copies of the questionnaire were used for the final analysis, except for 9 untrusted responses out of 220 that included missing values. Those subjects' environmental consciousness who received environmental education in middle and high schools was higher (t=3.15, p=.002). The higher their grades, the better their knowledge of medical waste (F=3.40, p=.035). Those subjects' knowledge of medical waste who received medical waste education was relatively high (t=3.14, p=.002). Those subjects with clinical practice experience had more sensitive attitudes toward medical waste (t=2.06, p=.041). Those subjects' attitudes toward Medical waste who received medical waste education at the universities were relatively high (t=2.04, p=.043). The subjects' environmental consciousness was positively correlated with their attitudes toward medical waste (r=.44, p<.001). The most influential factor in their attitudes toward medical waste is their environmental attitudes and medical waste education. Conclusion: The higher the nursing students' environmental consciousness, the higher their attitudes toward medical waste. It is necessary to provide environment and medical waste education for nursing students in order to strengthen their environmental consciousness and attitude toward medical waste.

• 방사성폐기물학회지
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• 제19권1호
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• pp.113-121
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• 2021

A safety assessment of radioactive waste repositories is a mandatory requirement process because there are possible radiological hazards owing to radionuclide migration from radioactive waste to the biosphere. For a reliable safety assessment, it is important to establish a parameter database that reflects the site-specific characteristics of the disposal facility and repository site. From this perspective, solubility, a major geochemical parameter, has been chosen as an important parameter for modeling the migration behavior of radionuclides. The solubilities were derived for Am, Ni, Tc, and U, which were major radionuclides in this study, and on-site groundwater data reflecting the operational conditions of the Gyeongju low and intermediate level radioactive waste (LILW) repository were applied to reflect the site-specific characteristics. The radiation dose was derived by applying the solubility and radionuclide inventory data to the RESRAD-OFFSITE code, and sensitivity analysis of the dose according to the solubility variation was performed. As a result, owing to the low amount of radionuclide inventory, the dose variation was insignificant. The derived solubility can be used as the main input data for the safety assessment of the Gyeongju LILW repository in the future.

• 한국환경보건학회지
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• 제26권4호
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• pp.38-44
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• 2000

Compared to other waste, waste tire has much discharge quantity and calorie. When we use waste heat from waste tire, it can be definitely better substitute energy than coal and anthracite in high oil price age. To use as a basic data for providing low cost and highly effective heating system, following conclusion was founded. Annual waste tire production was 19,596 million in 1999, Recycling ratio was almost 55% and more than 8.78 million was stored. Waste tire has lower than 1.5% sulfur contain ratio which is resource of an pollution, So it is a waste fuel which can be combustion based on current exhaust standard value without any extra SOx exclusion materials. Waste tire has 9,256Kcal/kg calorific value and it is higher than waste rubber, waste rubber, waste energy as same as B-C oil. When primary and second air quantity was 1.6, 8.0 Nm$^3$/min, dry gas production time was 270min and total combustion time was 360 min. In the SOx, NOx, HC of air pollution material density were lower than exhaust standard value at the back of cyclone and dusty than exhaust standard value without dust collector.

• 한국방재학회 논문집
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• 제1권1호
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• pp.91-102
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• 2001

본 연구에서는 체계화되지 못한 중소도시의 쓰레기 수집 수송의 자료를 정리, 현장 조사를 통한 쓰레기 수집 수송 관리를 위한 프로그램을 작성하였다. 대상은 C시로 하였으며, 수집구역을 주택, 아파트, 상가지역으로 한정지어 현장 조사를 실시하였고, 폐기물 관리 프로그램을 작성하였다. 연구 결과는 쓰레기 수집 수송단계의 필요한 인자와 중소도시에 적용 가능한 평균 값을 도출하였고, 중소도시의 쓰레기 수집 수송단계를 체계화하는 단계와 expert system을 구축하였다. 또한, Visual Basic을 이용한 쓰레기 수집 수송 관리 프로그램을 개발하였다. 결과적으로 본 연구로 개발되어진 도시폐기물의 수집 수송 관리 시스템은 다른 지역의 현장 Data를 추가함으로서 광범위하게 이용될 수 있을 것이다.

• 방사성폐기물학회지
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• 제15권1호
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• pp.65-82
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• 2017

방사성폐기물 발생기관의 가용데이터를 기반으로 산출된 핵종재고량을 적용하여 예비안전성평가를 수행한 결과 처분안전성과 운영측면에서 많은 어려움이 예상됨을 확인하였다. 본 논문에서는 전체처분시설 예비안전성평가를 수행하였으며, 평가결과 성능목표치 초과핵종에 대해 방사능량이 큰 비중을 차지하는 단위포장물을 선별하고, 높은 표면선량률의 포장물을 처분대상에서 제외하는 방식으로 처분시설의 처분방사능량제한을 도입하였다. 처분방사능량제한은 안전기준 만족을 위한 처분시설별 인수기준과 처분기준 설정에 기초자료로 활용할 것이며, 경주 처분시설의 안전한 종합개발계획수립 및 처분시설의 안전성 최적화를 위한 Safety Case 구축에 기여할 것으로 판단된다.

• 대한가정학회지
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• 제38권9호
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• pp.107-118
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• 2000

This study was carried out to obtain the information concerning the behavior and underlying consciousness of housewives about the disposal of foods waste and to find out relationships among environmental variables. Data were obtained through questionnaires and interviews from 350 housewives in Ulsan area. Foods waste can be produced at every stage of cooking. It was found that the most amount of foods waste was produced at the preparation stage of cooking. The type of dishes which produces the most waste was chigas. About 49.4% of foods waste consisted of vegetables and fruits and 18.5% of that was fishes. The environmental concern related to foods waste disposal was relatively high among subjects and they were willing to accept foods waste reducing system if it is not too complicated to use and not too expensive. These results have demonstrated that menu planning before food preparation and buying cleaned and trimmed materials in the market should be highly recommended to reduce the foods waste. To improve the disposal behavior of foods waste, it is required that well programmed education for environmental conservation and the public facility for foods waste disposal.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2009년도 추계학술발표대회 논문집
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• pp.342-349
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• 2009

The purpose of this study is to estimate efficiently an odor dispersion from waste treatment facility for a crematory and a neighborhood facility, then propose planning, a location of an opening or the arrangement of the trees. Hence, offer a comfortable environment for a resident. For this, first the research data about estimating odor dispersion from waste treatment facility and odor are analyzed, then research an ingredient, characteristic, a direct effect for human and a method of measurement. Second, with on-site survey, check odorimetry and the source of odor dispersion, then apply this to the boundary condition of CFD simulation. Third, analyse by the hour for the 2008 standard weather data of Cheon-an, then apply summer data that odor dispersion is active, winter data relatively slow and an annual mean velocity and wind to the simulation. Even if a crematory and neighborhood facility located on south and north from waste treatment facility are at the low rate, the south and north wind will be applied to the simulation. Fourth, with CFD simulation result, predict an odor dispersion, then propose a solution which is considered an odor dispersion, a location of an opening and the arrangement of the trees. Consequently, this study will have an effect on an environment of a resident.